Hi,

I installed uBlogsy 4.1 for MVC Umbraco 7.0.4+, but on preview I got the error for Object reference not set to an instance of an object. And fount out here the hot fix for that. I set this configuration in the web.config file:

 <system.web>
    <securityPolicy>
      <trustLevel name="Full" policyFile="internal"/>
    </securityPolicy>
...
 </system.web>

Today while I was installing the package for hotfix uHelpsy2.0.3.zip in the Developer menu, I got the next error:

Could not upload file
System.Exception: Error unpacking extension... ---> System.IO.FileNotFoundException: Could not find file 'C:\Users\dgeorgieva\Documents\Visual Studio 2012\Projects\Umbraco.Activtrades\Umbraco.Activtrades\App_Data\84f039fd-a917-433e-9533-e80d043b1931\package.xml'. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials, IWebProxy proxy, RequestCachePolicy cachePolicy) at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn) at System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver) at System.Threading.CompressedStack.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state) at System.Xml.XmlTextReaderImpl.OpenUrl() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) at System.Xml.XmlDocument.Load(XmlReader reader) at System.Xml.XmlDocument.Load(String filename) at umbraco.cms.businesslogic.packager.Installer.LoadConfig(String tempDir) at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) --- End of inner exception stack trace --- at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) at umbraco.presentation.developer.packages.Installer.uploadFile(Object sender, EventArgs e)

What can cause that error?

Thanks, Desi